Update Travis CI Cache (#5575)

`prepare` causes `npm ci` to be used. `.npm` is the recommended cache directory. Should speed up build times. https://docs.npmjs.com/cli/ci
parse-community · May 10, 2019 · 4c996ba · 4c996ba
1 parent 8a543bf
commit 4c996ba
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -18,7 +18,7 @@ branches:
   - /^greenkeeper/.*$/
 cache:
   directories:
-  - node_modules
+  - "$HOME/.npm"
   - "$HOME/.mongodb/versions"
 
 # Test stage